Anti seismic and pressure reducing, sturdy and durable electrophoretic spray coating, galvanized and chrome plated shell, sturdy and durable, corrosion-resistant, high temperature resistant

Low noise bearings: No need to add oil. We use branded low-noise rolling bearings, which require no oil for life. The shaft is modulated and plated with nickel alloy, suitable for the national standard FP2.5-FP25 (British 200CFM-1400CoFM), with a static pressure of 0-100Pa to meet user needs